[1]杨杰,曹昀,王秀文,等.保水剂对高羊茅种子萌发及幼苗生理的影响[J].水土保持研究,2017,24(01):351-356.
　YANG Jie,CAO Yun,WANG Xiuwen,et al.Effect of Super Absorbent Polymer on Germination and Physiological Characteristics of Festuca arundinacea[J].Research of Soil and Water Conservation,2017,24(01):351-356.
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保水剂对高羊茅种子萌发及幼苗生理的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 24 期数: 2017年01期 页码: 351-356 栏目: 出版日期: 2017-02-28
Title:
Effect of Super Absorbent Polymer on Germination and Physiological Characteristics of Festuca arundinacea
作者:
杨杰1, 曹昀1,2, 王秀文1, 黄佳超1, 李生1
1. 江西师范大学 地理与环境学院, 南昌 330022;
2. 江西师范大学 鄱阳湖湿地与流域研究教育部重点实验室, 南昌 330022
Author(s):
YANG Jie1, CAO Yun1,2, WANG Xiuwen1, HUANG Jiachao1, LI Sheng1
1. School of Geography and Environment, Jiangxi Normal University, Nanchang 330022, China;
2. Key Laboratory of Poyang Lake Wetland and Watershed Research Ministry of Education, Jiangxi Normal University, Nanchang 330022, China
关键词:
保水剂; 高羊茅; 萌发率; 生理特性; 抗旱性
Keywords:
super absorbent polymer; Festuca arundinacea; germination percentage; physiological characteristics; drought resistance
分类号:
Q945.79;S723.1;S359.9
摘要:
采用盆栽试验，研究了足量供水与限量供水条件下保水剂浓度（0.00%，0.10%，0.20%，0.30%，0.40%）对高羊茅（Festuca arundinacea）种子萌发及幼苗生理的影响，利用隶属函数分析法综合评价了不同保水剂浓度下高羊茅抗旱能力。结果表明：（1）保水剂可提高高羊茅种子萌发率与发芽势，足量供水条件最优保水剂浓度为0.10%，发芽率和发芽势与CK相比分别提升4.97%和6.05%，限量供水条件最优保水剂浓度为0.40%，发芽率和发芽势与CK相比分别提升38.13%和45.91%；（2）保水剂可提高高羊茅幼苗叶片的叶绿素a，b及类胡萝卜素含量，降低幼苗叶片SOD，POD，MDA的含量，保水剂浓度为0.20%～0.40%处理时各组值变化幅度较小；（3）保水剂可提高高羊茅根系活力，在保水剂浓度为0.20%处理时达到最大值；（4）通过隶属函数综合分析，5种保水剂浓度下高羊茅抗旱性顺序在足量供水条件下为0.20% > 0.30% > 0.10% > 0.40% > 0.00%，限量供水条件下为0.30% > 0.40% > 0.10% > 0.20% > 0.00%。建议在不同地区的高羊茅绿地建植与养护节水中加入浓度为0.20%～0.30%的保水剂，以利于草坪建植和延长草坪灌溉时间。
Abstract:
We conducted a study of the effect of super absorbent polymer (SAP) on the seed germination and physiological characteristics of Festuca arundinacea. Two different water and five aquasorb treatments were investigated based on a pot experiment. Comprehensive evaluation combining with 9 indicators subordinate function showed the Festuca arundinacea drought resistance ability. The results showed that: (1) SAP may effectively enhance the germination percentage and germinating potential of Festuca arundinacea. Compared with the control, the optimum SAP of sufficient amount of water conditions is 0.10%, they were improved by 4.97% and 6.05%, the condition of limited water supply was 0.40%, they were improved by 38.13% and 45.91%; (2) SAP may effectively enhance the chlorophyll content and decreased SOD, POD, MDA contents of the seedling leaves of Festuca arundinacea, the physiological index showed that change range was smaller when the concentrations of SAP ranged from 0.20% to 0.40%; (3) the application of SAP could improved the root vitality; (4) through the subordinate function analysis, under sufficient amount of water conditions, drought resistance of the five kinds of concentrations of SAP decreased in the order: 0.20% > 0.30% > 0.10% > 0.40% > 0.00%, on the contrary, the consequence was 0.30% > 0.40% > 0.10% > 0.20% > 0.00%. Therefore, applying 0.20% or 0.30% of SAP can increase the Festuca arundinacea seed germination of subordinate function, and it can be used in planting, maintenance and water-saving of urban green space.

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备注/Memo

收稿日期:2016-02-28;改回日期:2016-03-08。
基金项目:江西省科技成果重点转移转化计划（20142BBI90022）；国家自然科学基金（41361017）
作者简介:杨杰(1992-),男,内蒙古阿拉善左旗人,硕士研究生,研究方向为生态恢复。E-mail:email_yangjie@126.com
通讯作者:曹昀(1974-),男,甘肃镇原人,博士,副教授,主要从事湿地生态及其恢复研究。E-mail:yun.cao@163.com

更新日期/Last Update: 1900-01-01